VK103MM151R002P050

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TVS - Varistors, MOVs

A Transient Voltage Suppressor (TVS) varistor-MOV, or simply MOV, plays a critical role in circuit protection. In this article, we will specifically look at the VK103MM151R002P050 model and its application field and working principle.

P050 Series Varistor MOV

The VK103M15R002P050, part of the popular P050 series, is a varistor MOV device designed for circuit protection against transient overvoltage. It is a part of the larger P type series, which consists of Surge Arrestors, Metal Oxide Varistors, Transient Voltage Suppressors and more. These devices provide an effective solution to protect against power surges, electrostatic discharge (ESD), and other transient overvoltage scenarios.

Application Fields

The VK103M15R002P050 is designed for use in electronic equipment and systems, including: telecommunications, computer systems, consumer electronics, automotive, audio-visual, medical and industrial. Its varistor-MOV device is suitable for various types of equipment that may be exposed to erratic and unexpected power fluctuations.

Working Principle

The VK103M15R002P050 operates based on a working principle known as voltage-surge-tolerant metal-oxide-semiconductor (V-SOMOS). This voltage-dependent device uses a combination of a metal oxide semiconductor (MOS) and a special electrode structure, the combination of which provides improved surge handling capability.

The P050 series represents the latest technology in varistor-MOVs, featuring an improved internal structure. This structure helps to prevent microscopic “snapback” particles, which can damage sensitive parts of the circuit. Additionally, a unique “hardening” process helps reduce the risk of device shortening.

When the MOV is triggered, it will switch from low impedance to high impedance. It is this process that clamps voltage and dissipates the current flowing through it. The dissipation rate of the MOV is determined by the device capacitance.

An important factor of varistor-MOVs is that it must be selected by optimization of the trade-off between the device’s surge-handling capability and its clamping voltage level. This is because higher clamping voltage level leads to increased leakage current, which may then damage sensitive circuit parts.

Conclusion

The VK103M15R002P050 is a varistor-MOV device designed for circuit protection against transient overvoltage. This particular device is part of the P-type series which is designed for a variety of application fields. It operates on the V-SOMOS principle, which uses a combination of a metal oxide semiconductor and an electrode structure to provide improved surge handling capability. The device must be selected carefully, taking into consideration its surge-handling capability as well as its clamping voltage level.

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